<?php

class Dsd{


public $dimensions=array();
public $measures=array();
public $attributes=array();


// singleton instance 
  private static $instance; 


private function __construct() {
  /*** maybe set the name here later ***/
}


  // getInstance method 
  public static function getInstance() { 

    if(!self::$instance) { 
      self::$instance = new self(); 
    } 

    return self::$instance; 

  } 

 
}

?>
